An approximate cooperativity analysis by DSC of phase transitions of DPPC-DOCNa dispersions

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dc.creatorHobai, Stefan
dc.date2001-01-04
dc.date2001-01-05
dc.date.accessioned2026-07-07T05:45:14Z
dc.date.available2026-07-07T05:45:14Z
dc.descriptionThe effect of solute, sodium deoxycholate bile salt (DOCNa), on the cooperativity of ordered-fluid, fosfolipid phase transition has been investigated by determining of the transition widths in multibilayer dispersions of the dipalmitoylphosphatidylcholine (DPPC)-DOCNa mixtures. The DT1/2 values were determined by differential scanning calorimetry. The van't Hoff values of the main transition enthalpies were calculated using an approximative expression, deduced from Zimm and Bragg theory [Sturtevant,J.M.(1982), Proc.Natl.Acad.Sci.USA,79:3963-3967]. The bile salt decreases the cooperativity (size of cooperative unit) of DPPC bilayers.
dc.identifierhttps://arxiv.org/abs/physics/0101022
dc.identifierhttp://arxiv.org/abs/physics/0101022
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/83928
dc.subjectChemical Physics
dc.titleAn approximate cooperativity analysis by DSC of phase transitions of DPPC-DOCNa dispersions
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